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3 Short-Range Comms & IoT Mode

3.3 LoRa (CSS) Demodulation Measurement

3.3 LoRa (CSS) Demodulation Measurement

This measurement provides the capability of demodulating the LoRa

signals and

displaying the demodulated signal both in the time domain and in the frequency

domain. It also provides a trace representing the frequency drift value on each

symbol and some numeric results such as Tx power, symbol rate, preamble length,

and payload length, etc.

LoRa (CSS) Demodulation Measurement Commands

Selects the LoRa demodulation measurement in measure preset state:

:CONFigure:LORA

The following commands select the measurement without affecting the settings:

:CONFigure:LORA:NDEFault

:INITiate:LORA

The following queries are used to retrieve the measurement results:

:FETCh:LORA[n]?

:READ:LORA[n]?

:MEASure:LORA[n]?

Remote Command Results

The following table displays the returned results from the

(FETCh|MEASure|READ):LORA commands, indexed by subopcode:

n Return Value

0 This query returns the RF spectrum trace data as a list of x,y pairs. The x-axis values are in units of Hz. The

y-value are in units of dBm

Not specified

or 1

RF Center Frequency (Hz)

Carrier Power (dBm or W)

Carrier Frequency Error (Hz)

Deviation (Peak+) (Hz)

Deviation (Peak-) (Hz)

Deviation (Pk-Pk)/2 (Hz)

Deviation (RMS) (Hz)

Deviation (Peak+) Max Hold (Hz)

Deviation (Peak-) Max Hold (Hz)

Deviation (Pk-Pk)/2 Max Hold (Hz)

310 Short Range Comms & IoT Mode User's &Programmer's Reference

Keysight x-series Instruction Manual

Other manuals for Keysight x-series